Greensmaster 3150Page 5 -- 18Electrical System
Lower Reels Time Delay
The lower reels time delay is a solid state timer used to
energizethe lowerrelay (K5)long enoughto makesure
that the cutting units will lower fully when the joystick is
moved. When the lower relay is energized, hydraulic
manifoldsolenoidvalvesS2andS4areenergizedcaus-
ing the cutting unit lift cylinders to retract and lower the
cutting units.
Upon the application of electrical power to the time
delay,theloadisenergizedandthetimedelayisstarted.
After six (6) seconds the load is de--energized.
Testing
1. Park machine on a level surface. Make sure the en-
gine and ignition switch are OFF.
2. Raise seat to allow access to lower reels time delay
(Fig. 19).
3. Connect voltmeter across test load and test load to
timer. Connect 12VDC source to timer and load. Make
sure to observe polarity. After six (6) seconds, there
shouldbenovoltageacrosstheload.
4. After testing is complete, disconnect timer from
12VDC source and test load.
5. Lower operator seat.
Figure 19
TIME
DELAY
Figure 20
32 1
LOAD
INPUT VOLTAGE
TIMING
+
--
RESISTOR
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